{"id":"CVE-2026-98795","revision":"135426f753864c78a72357f5e7d9a413","records":[{"revision":"135426f753864c78a72357f5e7d9a413","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98795","aliases":[],"title":"net: sparx5: skip ptp deinit if init was skipped","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: sparx5: skip ptp deinit if init was skipped\n\nsparx5_ptp_init() returns early on the base lan969x variants\nbecause they do not have the SPX5_FEATURE_PTP flag. It also returns early\nwhen no \"ptp\" interrupt is described. Unbinding the driver then causes a\nNULL pointer dereference when cleaning up uninitialized tx_skbs queues:\n\n    Unable to handle kernel NULL pointer dereference at virtual address\n    0000000000000008\n    Call trace:\n    skb_queue_purge_reason+0x68/0x120 (P)\n    sparx5_ptp_deinit+0x64/0xc0\n    mchp_sparx5_remove+0x38/0x70\n    platform_remove+0x20/0x30\n    device_remove+0x4c/0x80\n\nBefore per-port tx_skbs were added, a NULL dereference would have happened\nwhen calling ptp_clock_unregister() on the never-registered PTP clocks.\n\nFix by returning early in sparx5_ptp_deinit() if PTP is not used.","state":0,"publishedAt":"2026-10-18T15:48:39.633+00:00","modifiedAt":"2026-10-19T09:25:48.008+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/ethernet/microchip/sparx5/sparx5_ptp.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"0933bd04047c3b96ba49545a8f91e7e6f8f666ff\",\n                            \"lessThan\": \"35c706d6eb1963735814c5f5bb2674a96eacf3cc\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0933bd04047c3b96ba49545a8f91e7e6f8f666ff\",\n                            \"lessThan\": \"2879b65bfa548e10d59c5fba91d17f8a00cd7029\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0933bd04047c3b96ba49545a8f91e7e6f8f666ff\",\n                            \"lessThan\": \"0d2c49915bc3aea4521cda5e4d42f24f63b94585\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/ethernet/microchip/sparx5/sparx5_ptp.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.18\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.18\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.56\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.10\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/35c706d6eb1963735814c5f5bb2674a96eacf3cc","https://git.kernel.org/stable/c/2879b65bfa548e10d59c5fba91d17f8a00cd7029","https://git.kernel.org/stable/c/0d2c49915bc3aea4521cda5e4d42f24f63b94585"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98795","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98795","identifiers":["CVE-2026-98795"]},"retained":false,"historicalAffected":[]}],"coverage":[]}